Ice export from the L aptev and E ast S iberian S ea derived from δ 18 O values

Ice export from the Laptev and East Siberian Sea derived from 18O values

Ice export from the vast Arctic Siberian shelf is calculated using dO values and salinity data for water samples collected during the International Siberian Shelf Study between August and September 2008 (ISSS-08). The samples represent a wide range of salinities and dO values due to river water inputs and sea ice removal. We estimate the fraction of water that has been removed as ice by interpr...

L Y S O S O M E S I N L Y M P H O I D T I S S U E III. Influence of Various Treatments of the Animals on the Distribution of Acid Hydrolases

The density-distribution patterns of various enzymes and of labeled materials have been determined by isopycnic centrifugation in a sucrose-0.2 M KC1 gradient on homogenates of lymphoid tissues from rats injected with Triton WR-1339, 14C-labeled dextran, 51Cr-labeled erythrocytes, and cortisol. The results confirm and extend the conclusion, derived from previous investigations on normal animals...

P R O B L E M S

To be considered for publication, solutions should be received by September 1, 2011. 1866. Proposed by Sadi Abu-Saymeh and Mowaffaq Hajja, Mathematics Department, Yarmouk University, Irbid, Jordan. Let ABC be a triangle, and L and M points on AB and AC, respectively, such that AL = AM. Let P be the intersection of BM and CL. Prove that PB = PC if and only if AB = AC. 1867. Proposed by Ángel Pla...

P R O F I L E S

G a M E S a N D L O G I C S F O R I N F O R M at I O N a L C a S C a D E S Msc in Logic